Home / 10,615.47-15,926.53-4,378.42

Finding the Fourth Proportional to 10,615.47, 15,926.53 and 4,378.42

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Solution

The fourth proportional to 10,615.47, 15,926.53 and 4,378.42 is: 6,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.47 : 15,926.53 = 4,378.42 : x
  2. Step 2: Convert to fraction form
    10,615.47/15,926.53 = 4,378.42/x
  3. Step 3: Cross multiply
    10,615.47x = 15,926.53 × 4,378.42
  4. Step 4: Simplify right side
    10,615.47x = 69,733,037.48
  5. Step 5: Solve for x
    x = 69,733,037.48/10,615.47
  6. Step 6: Final answer
    x = 6,569.00

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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.