Home / 15,412.95-23,103.59-6,640.47

Finding the Fourth Proportional to 15,412.95, 23,103.59 and 6,640.47

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Solution

The fourth proportional to 15,412.95, 23,103.59 and 6,640.47 is: 9,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.95 : 23,103.59 = 6,640.47 : x
  2. Step 2: Convert to fraction form
    15,412.95/23,103.59 = 6,640.47/x
  3. Step 3: Cross multiply
    15,412.95x = 23,103.59 × 6,640.47
  4. Step 4: Simplify right side
    15,412.95x = 153,418,663.08
  5. Step 5: Solve for x
    x = 153,418,663.08/15,412.95
  6. Step 6: Final answer
    x = 9,953.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.