Home / 15,468.30-21,345.93-8,753.40

Finding the Fourth Proportional to 15,468.30, 21,345.93 and 8,753.40

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Solution

The fourth proportional to 15,468.30, 21,345.93 and 8,753.40 is: 12,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.30 : 21,345.93 = 8,753.40 : x
  2. Step 2: Convert to fraction form
    15,468.30/21,345.93 = 8,753.40/x
  3. Step 3: Cross multiply
    15,468.30x = 21,345.93 × 8,753.40
  4. Step 4: Simplify right side
    15,468.30x = 186,849,463.66
  5. Step 5: Solve for x
    x = 186,849,463.66/15,468.30
  6. Step 6: Final answer
    x = 12,079.51

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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.