Home / 9,368.63-12,928.70-5,177.51

Finding the Fourth Proportional to 9,368.63, 12,928.70 and 5,177.51

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Solution

The fourth proportional to 9,368.63, 12,928.70 and 5,177.51 is: 7,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.63 : 12,928.70 = 5,177.51 : x
  2. Step 2: Convert to fraction form
    9,368.63/12,928.70 = 5,177.51/x
  3. Step 3: Cross multiply
    9,368.63x = 12,928.70 × 5,177.51
  4. Step 4: Simplify right side
    9,368.63x = 66,938,421.84
  5. Step 5: Solve for x
    x = 66,938,421.84/9,368.63
  6. Step 6: Final answer
    x = 7,144.96

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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.