Home / 13,068.60-18,034.78-7,100.28

Finding the Fourth Proportional to 13,068.60, 18,034.78 and 7,100.28

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Solution

The fourth proportional to 13,068.60, 18,034.78 and 7,100.28 is: 9,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.60 : 18,034.78 = 7,100.28 : x
  2. Step 2: Convert to fraction form
    13,068.60/18,034.78 = 7,100.28/x
  3. Step 3: Cross multiply
    13,068.60x = 18,034.78 × 7,100.28
  4. Step 4: Simplify right side
    13,068.60x = 128,051,987.74
  5. Step 5: Solve for x
    x = 128,051,987.74/13,068.60
  6. Step 6: Final answer
    x = 9,798.45

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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.