Home / 14,187.48-19,582.20-9,959.28

Finding the Fourth Proportional to 14,187.48, 19,582.20 and 9,959.28

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Solution

The fourth proportional to 14,187.48, 19,582.20 and 9,959.28 is: 13,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.48 : 19,582.20 = 9,959.28 : x
  2. Step 2: Convert to fraction form
    14,187.48/19,582.20 = 9,959.28/x
  3. Step 3: Cross multiply
    14,187.48x = 19,582.20 × 9,959.28
  4. Step 4: Simplify right side
    14,187.48x = 195,024,612.82
  5. Step 5: Solve for x
    x = 195,024,612.82/14,187.48
  6. Step 6: Final answer
    x = 13,746.25

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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.