Home / 13,056.89-18,018.40-7,088.55

Finding the Fourth Proportional to 13,056.89, 18,018.40 and 7,088.55

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Solution

The fourth proportional to 13,056.89, 18,018.40 and 7,088.55 is: 9,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.89 : 18,018.40 = 7,088.55 : x
  2. Step 2: Convert to fraction form
    13,056.89/18,018.40 = 7,088.55/x
  3. Step 3: Cross multiply
    13,056.89x = 18,018.40 × 7,088.55
  4. Step 4: Simplify right side
    13,056.89x = 127,724,329.32
  5. Step 5: Solve for x
    x = 127,724,329.32/13,056.89
  6. Step 6: Final answer
    x = 9,782.14

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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.