Home / 14,085.51-21,130.77-4,728.57

Finding the Fourth Proportional to 14,085.51, 21,130.77 and 4,728.57

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Solution

The fourth proportional to 14,085.51, 21,130.77 and 4,728.57 is: 7,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.51 : 21,130.77 = 4,728.57 : x
  2. Step 2: Convert to fraction form
    14,085.51/21,130.77 = 4,728.57/x
  3. Step 3: Cross multiply
    14,085.51x = 21,130.77 × 4,728.57
  4. Step 4: Simplify right side
    14,085.51x = 99,918,325.10
  5. Step 5: Solve for x
    x = 99,918,325.10/14,085.51
  6. Step 6: Final answer
    x = 7,093.70

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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.