Home / 15,805.19-23,710.08-6,445.78

Finding the Fourth Proportional to 15,805.19, 23,710.08 and 6,445.78

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Solution

The fourth proportional to 15,805.19, 23,710.08 and 6,445.78 is: 9,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.19 : 23,710.08 = 6,445.78 : x
  2. Step 2: Convert to fraction form
    15,805.19/23,710.08 = 6,445.78/x
  3. Step 3: Cross multiply
    15,805.19x = 23,710.08 × 6,445.78
  4. Step 4: Simplify right side
    15,805.19x = 152,829,959.46
  5. Step 5: Solve for x
    x = 152,829,959.46/15,805.19
  6. Step 6: Final answer
    x = 9,669.61

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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.