Home / 13,541.36-20,312.16-4,776.40

Finding the Fourth Proportional to 13,541.36, 20,312.16 and 4,776.40

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Solution

The fourth proportional to 13,541.36, 20,312.16 and 4,776.40 is: 7,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.36 : 20,312.16 = 4,776.40 : x
  2. Step 2: Convert to fraction form
    13,541.36/20,312.16 = 4,776.40/x
  3. Step 3: Cross multiply
    13,541.36x = 20,312.16 × 4,776.40
  4. Step 4: Simplify right side
    13,541.36x = 97,019,001.02
  5. Step 5: Solve for x
    x = 97,019,001.02/13,541.36
  6. Step 6: Final answer
    x = 7,164.64

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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.