Home / 15,333.04-21,161.16-9,368.20

Finding the Fourth Proportional to 15,333.04, 21,161.16 and 9,368.20

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Solution

The fourth proportional to 15,333.04, 21,161.16 and 9,368.20 is: 12,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.04 : 21,161.16 = 9,368.20 : x
  2. Step 2: Convert to fraction form
    15,333.04/21,161.16 = 9,368.20/x
  3. Step 3: Cross multiply
    15,333.04x = 21,161.16 × 9,368.20
  4. Step 4: Simplify right side
    15,333.04x = 198,241,979.11
  5. Step 5: Solve for x
    x = 198,241,979.11/15,333.04
  6. Step 6: Final answer
    x = 12,929.07

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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.