Home / 10,280.79-15,427.36-4,357.36

Finding the Fourth Proportional to 10,280.79, 15,427.36 and 4,357.36

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Solution

The fourth proportional to 10,280.79, 15,427.36 and 4,357.36 is: 6,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.79 : 15,427.36 = 4,357.36 : x
  2. Step 2: Convert to fraction form
    10,280.79/15,427.36 = 4,357.36/x
  3. Step 3: Cross multiply
    10,280.79x = 15,427.36 × 4,357.36
  4. Step 4: Simplify right side
    10,280.79x = 67,222,586.10
  5. Step 5: Solve for x
    x = 67,222,586.10/10,280.79
  6. Step 6: Final answer
    x = 6,538.66

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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.