Home / 10,077.12-15,120.64-4,534.40

Finding the Fourth Proportional to 10,077.12, 15,120.64 and 4,534.40

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Solution

The fourth proportional to 10,077.12, 15,120.64 and 4,534.40 is: 6,803.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,077.12 : 15,120.64 = 4,534.40 : x
  2. Step 2: Convert to fraction form
    10,077.12/15,120.64 = 4,534.40/x
  3. Step 3: Cross multiply
    10,077.12x = 15,120.64 × 4,534.40
  4. Step 4: Simplify right side
    10,077.12x = 68,563,030.02
  5. Step 5: Solve for x
    x = 68,563,030.02/10,077.12
  6. Step 6: Final answer
    x = 6,803.83

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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.