Home / 11,158.95-15,402.74-6,446.55

Finding the Fourth Proportional to 11,158.95, 15,402.74 and 6,446.55

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Solution

The fourth proportional to 11,158.95, 15,402.74 and 6,446.55 is: 8,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.95 : 15,402.74 = 6,446.55 : x
  2. Step 2: Convert to fraction form
    11,158.95/15,402.74 = 6,446.55/x
  3. Step 3: Cross multiply
    11,158.95x = 15,402.74 × 6,446.55
  4. Step 4: Simplify right side
    11,158.95x = 99,294,501.31
  5. Step 5: Solve for x
    x = 99,294,501.31/11,158.95
  6. Step 6: Final answer
    x = 8,898.19

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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.