Home / 15,985.20-23,957.55-6,111.30

Finding the Fourth Proportional to 15,985.20, 23,957.55 and 6,111.30

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Solution

The fourth proportional to 15,985.20, 23,957.55 and 6,111.30 is: 9,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.20 : 23,957.55 = 6,111.30 : x
  2. Step 2: Convert to fraction form
    15,985.20/23,957.55 = 6,111.30/x
  3. Step 3: Cross multiply
    15,985.20x = 23,957.55 × 6,111.30
  4. Step 4: Simplify right side
    15,985.20x = 146,411,775.32
  5. Step 5: Solve for x
    x = 146,411,775.32/15,985.20
  6. Step 6: Final answer
    x = 9,159.21

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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.