Home / 13,433.49-18,547.45-8,400.15

Finding the Fourth Proportional to 13,433.49, 18,547.45 and 8,400.15

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Solution

The fourth proportional to 13,433.49, 18,547.45 and 8,400.15 is: 11,597.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.49 : 18,547.45 = 8,400.15 : x
  2. Step 2: Convert to fraction form
    13,433.49/18,547.45 = 8,400.15/x
  3. Step 3: Cross multiply
    13,433.49x = 18,547.45 × 8,400.15
  4. Step 4: Simplify right side
    13,433.49x = 155,801,341.12
  5. Step 5: Solve for x
    x = 155,801,341.12/13,433.49
  6. Step 6: Final answer
    x = 11,597.98

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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.