Home / 12,987,293.52-17,922,486.06-7,186,319.76

Finding the Fourth Proportional to 12,987,293.52, 17,922,486.06 and 7,186,319.76

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Solution

The fourth proportional to 12,987,293.52, 17,922,486.06 and 7,186,319.76 is: 9,917,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,293.52 : 17,922,486.06 = 7,186,319.76 : x
  2. Step 2: Convert to fraction form
    12,987,293.52/17,922,486.06 = 7,186,319.76/x
  3. Step 3: Cross multiply
    12,987,293.52x = 17,922,486.06 × 7,186,319.76
  4. Step 4: Simplify right side
    12,987,293.52x = 128,796,715,721,302.53
  5. Step 5: Solve for x
    x = 128,796,715,721,302.53/12,987,293.52
  6. Step 6: Final answer
    x = 9,917,132.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.