Home / 15,294.13-21,105.93-8,925.10

Finding the Fourth Proportional to 15,294.13, 21,105.93 and 8,925.10

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Solution

The fourth proportional to 15,294.13, 21,105.93 and 8,925.10 is: 12,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.13 : 21,105.93 = 8,925.10 : x
  2. Step 2: Convert to fraction form
    15,294.13/21,105.93 = 8,925.10/x
  3. Step 3: Cross multiply
    15,294.13x = 21,105.93 × 8,925.10
  4. Step 4: Simplify right side
    15,294.13x = 188,372,535.84
  5. Step 5: Solve for x
    x = 188,372,535.84/15,294.13
  6. Step 6: Final answer
    x = 12,316.66

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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.