Home / 10,864.60-14,994.12-6,386.11

Finding the Fourth Proportional to 10,864.60, 14,994.12 and 6,386.11

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Solution

The fourth proportional to 10,864.60, 14,994.12 and 6,386.11 is: 8,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.60 : 14,994.12 = 6,386.11 : x
  2. Step 2: Convert to fraction form
    10,864.60/14,994.12 = 6,386.11/x
  3. Step 3: Cross multiply
    10,864.60x = 14,994.12 × 6,386.11
  4. Step 4: Simplify right side
    10,864.60x = 95,754,099.67
  5. Step 5: Solve for x
    x = 95,754,099.67/10,864.60
  6. Step 6: Final answer
    x = 8,813.40

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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.