Home / 10,012.01-13,818.26-6,780.40

Finding the Fourth Proportional to 10,012.01, 13,818.26 and 6,780.40

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Solution

The fourth proportional to 10,012.01, 13,818.26 and 6,780.40 is: 9,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.01 : 13,818.26 = 6,780.40 : x
  2. Step 2: Convert to fraction form
    10,012.01/13,818.26 = 6,780.40/x
  3. Step 3: Cross multiply
    10,012.01x = 13,818.26 × 6,780.40
  4. Step 4: Simplify right side
    10,012.01x = 93,693,312.51
  5. Step 5: Solve for x
    x = 93,693,312.51/10,012.01
  6. Step 6: Final answer
    x = 9,358.10

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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.