Home / 10,342.08-15,510.60-2,947.20

Finding the Fourth Proportional to 10,342.08, 15,510.60 and 2,947.20

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Solution

The fourth proportional to 10,342.08, 15,510.60 and 2,947.20 is: 4,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.08 : 15,510.60 = 2,947.20 : x
  2. Step 2: Convert to fraction form
    10,342.08/15,510.60 = 2,947.20/x
  3. Step 3: Cross multiply
    10,342.08x = 15,510.60 × 2,947.20
  4. Step 4: Simplify right side
    10,342.08x = 45,712,840.32
  5. Step 5: Solve for x
    x = 45,712,840.32/10,342.08
  6. Step 6: Final answer
    x = 4,420.08

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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.