Home / 15,498.04-21,387.36-9,210.28

Finding the Fourth Proportional to 15,498.04, 21,387.36 and 9,210.28

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Solution

The fourth proportional to 15,498.04, 21,387.36 and 9,210.28 is: 12,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.04 : 21,387.36 = 9,210.28 : x
  2. Step 2: Convert to fraction form
    15,498.04/21,387.36 = 9,210.28/x
  3. Step 3: Cross multiply
    15,498.04x = 21,387.36 × 9,210.28
  4. Step 4: Simplify right side
    15,498.04x = 196,983,574.06
  5. Step 5: Solve for x
    x = 196,983,574.06/15,498.04
  6. Step 6: Final answer
    x = 12,710.22

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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.