Home / 15,703.07-21,670.17-8,988.81

Finding the Fourth Proportional to 15,703.07, 21,670.17 and 8,988.81

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Solution

The fourth proportional to 15,703.07, 21,670.17 and 8,988.81 is: 12,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.07 : 21,670.17 = 8,988.81 : x
  2. Step 2: Convert to fraction form
    15,703.07/21,670.17 = 8,988.81/x
  3. Step 3: Cross multiply
    15,703.07x = 21,670.17 × 8,988.81
  4. Step 4: Simplify right side
    15,703.07x = 194,788,925.83
  5. Step 5: Solve for x
    x = 194,788,925.83/15,703.07
  6. Step 6: Final answer
    x = 12,404.52

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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.