Home / 13,071.60-19,607.36-5,280.32

Finding the Fourth Proportional to 13,071.60, 19,607.36 and 5,280.32

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Solution

The fourth proportional to 13,071.60, 19,607.36 and 5,280.32 is: 7,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.60 : 19,607.36 = 5,280.32 : x
  2. Step 2: Convert to fraction form
    13,071.60/19,607.36 = 5,280.32/x
  3. Step 3: Cross multiply
    13,071.60x = 19,607.36 × 5,280.32
  4. Step 4: Simplify right side
    13,071.60x = 103,533,135.16
  5. Step 5: Solve for x
    x = 103,533,135.16/13,071.60
  6. Step 6: Final answer
    x = 7,920.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.