Home / 10,386.81-14,333.91-5,671.08

Finding the Fourth Proportional to 10,386.81, 14,333.91 and 5,671.08

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Solution

The fourth proportional to 10,386.81, 14,333.91 and 5,671.08 is: 7,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.81 : 14,333.91 = 5,671.08 : x
  2. Step 2: Convert to fraction form
    10,386.81/14,333.91 = 5,671.08/x
  3. Step 3: Cross multiply
    10,386.81x = 14,333.91 × 5,671.08
  4. Step 4: Simplify right side
    10,386.81x = 81,288,750.32
  5. Step 5: Solve for x
    x = 81,288,750.32/10,386.81
  6. Step 6: Final answer
    x = 7,826.15

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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.