Home / 10,818.64-14,931.28-6,103.36

Finding the Fourth Proportional to 10,818.64, 14,931.28 and 6,103.36

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Solution

The fourth proportional to 10,818.64, 14,931.28 and 6,103.36 is: 8,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.64 : 14,931.28 = 6,103.36 : x
  2. Step 2: Convert to fraction form
    10,818.64/14,931.28 = 6,103.36/x
  3. Step 3: Cross multiply
    10,818.64x = 14,931.28 × 6,103.36
  4. Step 4: Simplify right side
    10,818.64x = 91,130,977.10
  5. Step 5: Solve for x
    x = 91,130,977.10/10,818.64
  6. Step 6: Final answer
    x = 8,423.52

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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.