Home / 13,090.89-19,641.57-4,771.50

Finding the Fourth Proportional to 13,090.89, 19,641.57 and 4,771.50

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Solution

The fourth proportional to 13,090.89, 19,641.57 and 4,771.50 is: 7,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.89 : 19,641.57 = 4,771.50 : x
  2. Step 2: Convert to fraction form
    13,090.89/19,641.57 = 4,771.50/x
  3. Step 3: Cross multiply
    13,090.89x = 19,641.57 × 4,771.50
  4. Step 4: Simplify right side
    13,090.89x = 93,719,751.26
  5. Step 5: Solve for x
    x = 93,719,751.26/13,090.89
  6. Step 6: Final answer
    x = 7,159.16

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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.