Home / 13,057.64-18,019.59-7,089.32

Finding the Fourth Proportional to 13,057.64, 18,019.59 and 7,089.32

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Solution

The fourth proportional to 13,057.64, 18,019.59 and 7,089.32 is: 9,783.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.64 : 18,019.59 = 7,089.32 : x
  2. Step 2: Convert to fraction form
    13,057.64/18,019.59 = 7,089.32/x
  3. Step 3: Cross multiply
    13,057.64x = 18,019.59 × 7,089.32
  4. Step 4: Simplify right side
    13,057.64x = 127,746,639.78
  5. Step 5: Solve for x
    x = 127,746,639.78/13,057.64
  6. Step 6: Final answer
    x = 9,783.29

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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.