Home / 10,218.56-15,294.89-5,281.40

Finding the Fourth Proportional to 10,218.56, 15,294.89 and 5,281.40

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Solution

The fourth proportional to 10,218.56, 15,294.89 and 5,281.40 is: 7,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.56 : 15,294.89 = 5,281.40 : x
  2. Step 2: Convert to fraction form
    10,218.56/15,294.89 = 5,281.40/x
  3. Step 3: Cross multiply
    10,218.56x = 15,294.89 × 5,281.40
  4. Step 4: Simplify right side
    10,218.56x = 80,778,483.49
  5. Step 5: Solve for x
    x = 80,778,483.49/10,218.56
  6. Step 6: Final answer
    x = 7,905.08

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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.