Home / 15,411.04-21,266.88-9,123.52

Finding the Fourth Proportional to 15,411.04, 21,266.88 and 9,123.52

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Solution

The fourth proportional to 15,411.04, 21,266.88 and 9,123.52 is: 12,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.04 : 21,266.88 = 9,123.52 : x
  2. Step 2: Convert to fraction form
    15,411.04/21,266.88 = 9,123.52/x
  3. Step 3: Cross multiply
    15,411.04x = 21,266.88 × 9,123.52
  4. Step 4: Simplify right side
    15,411.04x = 194,028,805.02
  5. Step 5: Solve for x
    x = 194,028,805.02/15,411.04
  6. Step 6: Final answer
    x = 12,590.25

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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.